Home / 3,218.08-4,816.18-2,490.90

Finding the Fourth Proportional to 3,218.08, 4,816.18 and 2,490.90

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Solution

The fourth proportional to 3,218.08, 4,816.18 and 2,490.90 is: 3,727.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.08 : 4,816.18 = 2,490.90 : x
  2. Step 2: Convert to fraction form
    3,218.08/4,816.18 = 2,490.90/x
  3. Step 3: Cross multiply
    3,218.08x = 4,816.18 × 2,490.90
  4. Step 4: Simplify right side
    3,218.08x = 11,996,622.76
  5. Step 5: Solve for x
    x = 11,996,622.76/3,218.08
  6. Step 6: Final answer
    x = 3,727.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.